The Suresign blood pressure and pulse rate monitor helps to monitor blood pressure and pulse rate from home. The blood pressure reading is digitally displayed as a value and can store up to 120 readings for easy tracking. The Suresign Blood Pressure Monitor is intended for the measurement of Systolic & Diastolic arterial blood pressure. The device measures the fluctuations in the pressure of the cuff produced by extension & contraction of the artery in the arm in response to each heartbeat. These are converted into millimetres of mercury (Hg) & are displayed as a digital value. This monitor also includes an irregular heartbeat detector & WHO classification indicator. Key Features of Suresign Blood Pressure & Pule Rate Monitor Easy to use & store. Pulse rate measurement. World Health Organisation (WHO) classification indicator. Irregular heartbeat detection. 2 X user memory (60 each).Automatic inflation & deflation. Includes standard size cuff - fits upper arm circumference 22cm-32cm.